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CCNA 4 Pretest Part 2

CCNA 4 Pretest Part 2: Covers OSPF, PPP, DHCPv6, ACLs, QoS, VPNs, and BGP concepts. Great for reviewing router protocols, configurations, and Cisco exam preparation.

Alice Edwards
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21. Which criterion is preferred by the router to choose arouter ID?□the router-id rid commandthe IP address of the highest configured loopback interface on therouterrthe IP address of the highest active interface on the router□i the IP address of the highest active OSPF-enabled interfaceThe preferred order of criteria for Cisco routers to identify the router ID is: anexplicitly configured router using the router-id rid command; the IP address ofany configured loopback interface; and the IP address of any active interface onthe router (it does not have to be an OSPF-enabled interface).22. A network administrator is entering the command ipv6unicast-routing to start configuring DHCPv6 operation on arouter. Which statement describes the function of thiscommand?□It is required to configure stateless DHCPv6 server on the router.LIt is required to configure stateful DHCPv6 server on the router.rIt is required for sending ICMPv6 RA messages._□It is required for enabling DNS service in DHCPv6 configurations.The ipv6 unicast-routing command is required to enable IPv6 routing on a router.This command is not necessary for the router to be a stateless or statefulDHCPv6 server, but is required for sending ICMPv6 RA messages.23. What three services are provided by the transport layer?(Choose three.)□encryption of data□path determinationrbit transmissionrflow control□error recoveryrconnection establishment□data representationThe transport layer is responsible for tracking digital conversations between asource application and a destination application through the use of port numbers.Two protocols that operate at the transport layer are TCP and UDP. TCP canprovide reliability by establishing a connection, maintaining flow control, and errorrecovery.24. Which TCP/IP model layer is closest to the end user?□internetLtransport□application

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Subject
Cisco Certified Network Associate

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